The pixel art is excellent, and the 3D of the zombie boss is also excellent, but together they feel off. I had a hard time attacking anything without getting hit at the same time (usually the small zombies more than the boss), even when spamming the dash. This led to a lot of deaths before getting the boss to even 1/4 health, which I think is mainly a result of the craftable weapons not doing much damage. Crafting weapons from stuff that zombies might actually drop is really cool! It seems like the shovel and the bone did the most damage, but they were also getting me killed with how close I needed to be and the fact that I only had a split second to get one hit in before being hurt. The stone can only be thrown in 4 directions, which was unexpected since everything else on screen moves across all angles. All in all, there's a good concept here. Some balance in damage and health will go a ways, and consider evening out the mix of 3D and 2D elements (or consider going with one or the other).